Vitality membership not activated by virgin active

I am a member of virgin active through Momentum multiply. In March i joined Vitality. According to Vitality consultant the membership fee of R1500 will be void if i switch the Virgin active membership to them. In March i meet Eckard Winter in Tygervalley mall while they were busy with the sales campaign. He said i must go to the branch the following day and speak to any saleman. When i was there they said i must speak to him as he is my salesman. Went again on the 29th and the receiptionist call him and he said he is busy with the client. I went again on the 30th and he said i must come and change it in the new month which is April. I meet with him Saturday the 9th of April. To my suprise the system showed that i must pay R1500. I called Vitality and they said i was supposed to change before the 31st of March. Eckard and Shaun who is the sales manager said theres nothing they can do , i must just pay R1500 after i went to virgin active TYGERVALLY BRANCH SEVERAL TIMES TO CHANGE MY MEMBERSHIP BEFORE 31 OF MARCH. I don't think that is my fault. To me it looked like he was not keen to assist me as it was not a new sale for him. He was not going to get any thing from it.